The first few episodes rushed the whole story along and then they had to backtrack and add problems to fill in the rest of the episodes. I couldn't wait to finish this one. For me, this fell in the camp of "that's time I'll never get back."
Here are some of the problems that I had: 1) why did he like her? From just seeing her? 2) the ML was very one-dimensional, showed absolutely no emotion whatsoever throughout the show; 3) the FL starts out somewhat strong and has career goals for herself, and ended up just giving everything up for him; 4) Look up stalker in the dictionary - ML's picture will be there; 5) the show was unbalanced, it tried to go from ROMCOM to farce and then started to take itself seriously; 6) Almost every man in this show liked the FL. Why? 7) Large cast with inadequate development of characters. Grandmother was the cliche "bad guy" and the brother seemed to be thrown in to try to further the story and that whole storyline was not addressed in a way that made any sense; 8) No chemistry between the leads; 9) she spends a lot of time, in essence telling him to go away and not be a stalker, but then she's in love with him. Again, why?

This is a show that was actually irritating me as I watched it. For one reason, I think I've only ever dropped one drama and I felt compelled to complete this one, and that made me mad. As I was watching it, I just felt that, the leads especially, were just going through the motions. I couldn't relate to them and I didn't care about them.